Internal combustion engine



f 3939-/ H. FORD 2,51,423

Filed May l5, 1523;? f3 :Sheets-Sheet l W G Q INVENTOR.

ATTORN FQRD 2,151,423

YNTERNAL @OMBUSTLGN ENGNE Filed May 13, 1937 2 sheets-shea INVENTOR.

ATTORNEY.

Patented Mar. 21, 1939 PATENT OFFICE INTERNAL COMBUSTION ENGINE Henry Ford, Dearborn, Mich., assignor to Ford Motor Company, Dearborn, Mich., a corporation of Delaware Application May 13,

y 7 Claims.

"\ gine so that the need of separate lubrication for the pumps is eliminated. More specifically, the water pumps are aligned with the cam shaft timing gear and passageways are provided whereby oil which is thrown radially from this timing gear is conducted to the bearings for the water pump shafts.

A further object of my invention is to provide a construction wherein a cover plate forms a'housing for the cam shaft timing gears, the support for the two water pumps, and the means upon which the front end of the engine is mounted.

vWith theseand other objects in view, my invention consists in the arrangement, construction and combination ofthe various parts of my improved device, as described in the specification,

claimed in my claims and illustrated in the accompanying drawings, in which:

Figure 1 is a front view of a motor having my improved water circulating system incorporated therein.

lFigure 2 is a sectional view, taken on the line 2-2 of Figure 1. f

Figure 3 is a sectional view, taken on Athe lin '3 3 of Figure 2.

'35 Figure 4 is a sectional view, taken on 4--4 of Figure 2.

Figure 5 is a sectional view, taken on tha line 5--5 of Figure 2, and Figure 6 is a fragmentary view of one of the ,w pump driving pulleys.

the line Referring to the accompanying drawings, I

have` used the reference numeral I0 to indicate the cylinder'blocks of a V-type engine, which cylinder blocks are cast integrally with a crank case a I I. An oil pan I2 is secured in the usual manner to the underside ofthe crank case. The engine is provided with a conventional crank shaft I3 and cam shaft I 4, the two being geared together by timing gears I5 and I6, respectively. These gears I5 and I6 are secured to the crank shaft and cam shaft, respectively, at the forwardend of the engine and project slightly beyond the forward endsvof the cylinder blocks I0.

A combinedtiming gear Housing and motor supporting bracket Il is adapted to be secured to 1937, Serial N0. 142,370

the frontend of the crank case I I over the timing gears, this bracket being fastened thereto by -means of a plurality of bolts 5I. It will be noted from Figure 3 that the bracket Il forms a housing aroundpthe cam shaft timing gear I6 and that this bracket has a pair of arms I8 cast integrally therewith which arms extend horizontally beyond the cylinder block so as to form a pair of spaced supports for the frontend of the motor.

I have provided two water pumps, one for each cylinder block, these pumps being mounted upon the bracket Il and having their impellers extending into suitable pump housings which are cored into the cylinder block casting I0. The bracket Il is provided with a pair of annular chambers I9 cored therein,'each of these chambers being longitudinally aligned with and on op'- posite sides of the timing gearl The chambers I9 are in communication with the timing gear housing so that when the engine is operating, oil will be thrown radially from thetiming gear and will enter each of these chambers. It will be noted that the bracket Il, adjacent to each chamber I9, is formed with both inner and outer walls. the inner wall bearing against the front end of the cylinder block; Two pairs of aligned tapered these openings is aligned with one of the chambers I9 lso as to each receive a Water pump unit. Each water pump proper comprises a cylindrical body 20 having an annular bore therethrough in which a. bearing sleeve 2| is secured. A flange 22 extends radially from the inner end of the member 20, the periphery of this flange being tapered to correspond to the tapered bore in the inner wall of the bracket l1. An outer flange 23 extends radially from the body 2D at a point spaced from the outer end thereof, the periphery of this outer flange also being tapered to correspond to the tapered opening in the outer wall' of the bracket Il. Thus, when each pump unit, as so far described, is inserted into the tapered openings, the flange 23 forms a seal with the outer face of the'bracket Il while the flange 22 forms a seal with the inner face of this bracket. These two flanges thereby prevent oil which is deposited in the chambers I9 from leaking through to the outside of the motor and also prevents the leako so that oil will flow from the felt sleeve" to the shalt 30 and thereby lubricate the pump.

In order to secure each pump in position plates 24 are provided, each having a pair of arms 25 which are adapted to straddle the center portion of the member and bear. against the periphery of the outer flange 23. The inner ends of each plate 24 are adapted to bear against' a flange 28 which is formed around the periphery of a distributor housing 21. The distributor housing is designed to-be secured to the outer wall of the bracket Il directly in line with the cam shaft I4,

- the distributor having a tongue formed thereon which coacts with a groove 28 formed in the cam shaft I4. A stud 29 is threaded into the bracket I1 between `each of the pump openings and the g distributor, upon which studs each ofthe plates 24 is secured so that upon the screwing down of a suitable nut each plate 24 will be secured in position with the arms bearing against the pump flange 23, while the inner ends oi' each plate bear against the flange 26 of the distributor. In this manner the distributor is secured to the bracket Il and each of the pump housings is secured in the pump receiving openings.

It will be 'noted from Figure 2 that a pump shaft is rotatably mounted in each of the bearings 2|, each shaft having a radially extending ange 3| formed integrally therewith at the outer end of the bearing sleeve 2|. A cap 32 is threaded upon the outer end ofthe member 20, this cap v coacting with the flange 3| to prevent axial movement of the shaft in bearing sleeve 2| and a V- belt pulley 33 is pressed on thevouter end of each shaft 30. The drive for the pump is obtained in the conventional manner, there being a driving pulley 34 which is secured to the crank shaft and a combined fan and generator pulley 35 which is aligned with the pulleys 33 and 34, in position at the top of the motor. A V-type belt 3B extends around the four pulleys so as to drive all pulleys simultaneously.

axis thereof and three vanes Referring to Figure 2, I have shown an impeller Y :which isadapted to bear against the inner race of the ange 22. A tongue and slot driving connection 52 is provided between .the impeller 31 and the'shaft 30 and further, the impeller is piloted in-axial alignment with the shaft by allowvtight connection between its back and the inner face of the flange 22. A Bakelite button 38 is secured in the inner end of the impeller at the 3l extend radially from the lhub of the impeller. A dat spring 40 has its respective ends secured to the periphery of the flange 22, the spring extending around the face of the impeller and having a seat at its central portion with which the button 3l coacts so that the impeller is resiliently urged against the inner face of the flange 22. Each pump is designed to be assembled as 'a unit, each unit comy prising vthe pump body, pulley. shaft, impeller and spring. After the unit is` assembled it is then inserted into the tapered openings in the bracket Il and the pump 'is ready to operate.

It will be noted from Figure 4 thatv the outer walls of each cylinder block are formed from a metal plate 4| which is welded to the block.

around its periphery. Each cylinder block is provided with a volute shaped chamber 42 cast therein in axial alignment with the axes ofthe gianna water pumps when the bracket Il is secured in wardly of the chambers 42 and an axial opening 44 connects each chamber 42 with the adjacent chamber 43. The openings 44 are smaller than the path described by the impeller vanes 39 so that when the impellers are rotated, water will be drawn from the chambers 43 through the openings 44 and discharged into the chambers 42. lAn intake pipe 45 is fixed to each plate 4| so as to discharge into the chamber 43 adjacent to the bottom of the cylinder block. The chambers 42 are in communication with passageways 46 which extend longitudinally the full length of the cylinder blo'ck, the passageways 40 comprising outer water Jacket for each cylinder block. A cylinder head 43 is secured over the upper end of each cylinder block in the conventional manner and aligned openings 43 are provided in the cylinder blocks and heads whereby water may circulate from around the cylinders to the cylinder heads. An outlet opening Il is provided in cach cylinder head 43 at the upperside thereof so that water may be discharged from the motor.

- When the engine is in operation, the impeller draws water through each pipe 45', chambers 43 and 42 and discharges same into the passageway 46. Part of the water then flows the length of the motor, the remaining part flowing upwardly around each of the cylinders in the block. The water is then discharged through the openings 49 into the water chambers around the cylinder I with the radiator of the vehicle and likewise con-4 nect the bottom of the radiator with the inlet pipes 4I.

Among the many advantages arisilgfrom'the use of my 'improved construction, it should be kept in mind that the pumps are lubricated by the oil which is circulated in the motor so that failure of the pumps because of lack oflubrication is practically impossible. This feature simpliiles the servicing of 4theengine and further I prevents water pump failures due to the negligence of owners in not lubricating saine.`

Still further. by casting both the inlet and outlet housings oi' the motor with the cylinder block casting a substantial installation is effected.

saving of the cost of the'.

Some changes may be made inthe arrangement, construction and combination of the varl ious parts oi' my improved device without de` parting from the spirit of my invention and it is my intention to cover by my claims such changes as may reasonably be included within the scope thereof.'

I claim as my invention.

1; An internal combustion engine having a water Jacket formed therearound, a bracket secured to said water jacket to thereby form a chamber outside of said jacket, said rectcommunication with the crank case of said engine, aligned openings insaid bracket and water jacket, and a water pump extending through said openings, and forming a seal with said bracket and water jacket respectively, the intermediate portion of said pump being exposed within said chamber, for the purpose described.

2. A device, as claimed in claim 1, wherein said chamber being in di-r susana 3 openings are tapered and wherein said pump is provided with correspondingly tapered seats which coact therewith to form said seals.

3. A fluid pump' adapted to circulate vcooling fluid through an internal-combustion engine comprising, a pump body having a pump shaft rotatably mounted therein, an impeller secured to said shaft at one end ofv said body, driving means secured to said shaft adjacent to the other end of said body, the periphery of said body having a pair of axially spaced concentric annular sealing surfaces thereon, and means for securing said pump in an internal-combustion engine with said sealing surfaces coacting with complementary sealing surfaces in said engine.

4. A fluid pump adapted to circulate cooling fluid throughv an internal-combustion engine comprising, a pump body having a pump shaftl rotatablyvmounted therein, an impeller secured 'to said shaft at one end of said body. driving means secured to said shaft adjacent to the other end of said body, the periphery of said body having a pairof axially spaced concentric sealing surfaces thereon, said surfaces both being conical in shape,`and means for securing said pump in an internal-combustion engine with said sealing surfaces coacting with complementary'seaiing surfaces in said engine.

y5. A duid pump adapted to circulate -cooiing fluid through an internal-combustion engine vcomprising, a cylindrical body member having a pump shaft rotatably mounted therein, an impeller secured to said shaft at one end of said body, driving means secured to said shaft addacent to the other end of said body', said body member having a pair of flanges extending radially from the'respective ends thereof, the peripheries of said flanges each being tapered to coincide l,with the surface of a cone the axis of which is aligned with said pump shaft, and means for securing said pump in an internalcombustion engine with said flanges coacting with complementary sealing surfaces in said en gine.

6. A fluid pump adapted to circulate cooling fluid through an internal-combustion engine comprising, a cylindrical pump body having a pump shaft rotatably mounted therein, said body having a pair of flanges extending radially from axially spaced points therealong, an impeller secured tosaid shaft adjacent to one end of said flanges, said impeller member coacting with a fiat face on the adjacent flange to form a fluid seal between the cooling fluid and said shaft, t

a driving Wiley secured to the opposite end of said shaft, the peripheries of said flanges being machined to coincide with the surface of a cone the axis of which is in alignment with the axis of said shaft and the apex of which is disposed at the'impeller end of said shaft, and means for securing said pump in an engine with said flange peripheries coacting with a pair of complementary conical surfaces in said engine so that a seal is maintained between each of said flanges and said engine.

'7. An internalfcombustion engine comprising, a cylinder block having a water jacket cast therearound, one side of which is open, said water jacket having water pump inlet and outlet chambers cast therein, a portion of each of said ini let and outlet chambers being exposed adjacent to said open portion of the water jacket, and a plate secured to said block over said water jacket and housings, said plate yforming a closure for said water jacket and pump housings.

' HENRY FORD. 

